spectre.console/src/Spectre.Console.Cli/Internal/Extensions/AnsiConsoleExtensions.cs

namespace Spectre.Console.Cli;

internal static class AnsiConsoleExtensions
{
    private static readonly Lazy<IAnsiConsole> _console;

    static AnsiConsoleExtensions()
    {
        _console = new Lazy<IAnsiConsole>(() => AnsiConsole.Console);
    }

    public static IAnsiConsole GetConsole(this IAnsiConsole? console)
    {
        return console ?? _console.Value;
    }

    public static void SafeRender(this IAnsiConsole? console, IRenderable? renderable)
    {
        if (renderable != null)
        {
            console ??= _console.Value;
            console.Write(renderable);
        }
    }

    public static void SafeRender(this IAnsiConsole? console, IEnumerable<IRenderable?> renderables)
    {
        console ??= _console.Value;
        foreach (var renderable in renderables)
        {
            if (renderable != null)
            {
                console.Write(renderable);
            }
        }
    }
}